What does Ianthe mean?
From Greek 'ion' (violet) + 'anthos' (flower), giving 'violet flower'. Borne by a figure in Greek mythology (an Oceanid) and used by Lord Byron. A minority of sources offer alternative roots, but 'violet flower' is the standard etymology.
What does Elpida mean?
The Modern Greek form of the ancient name Elpis, from Greek 'elpis' ('hope'). The Slavic Nadezhda was coined as a translation of this Greek word.